Statistics Dictionary

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Discriminant Analysis

Discriminant analysis is statistical technique used to classify observations into non-overlapping groups, based on scores on one or more quantitative predictor variables.

For example, a doctor could perform a discriminant analysis to identify patients at high or low risk for stroke. The analysis might classify patients into high- or low-risk groups, based on personal attributes (e.g., chololesterol level, body mass) and/or lifestyle behaviors (e.g., minutes of exercise per week, packs of cigarettes per day).

There are several different ways to conduct a discriminant analysis. The approach described on this website is based on linear regression, where the dependent variable is qualitative.

See also:  How to Conduct a Discriminant Analysis